- Mathematics. Quadrilateral.
- A rectangular area surrounded on all four sides by buildings.
- The buildings bordering this area.
- The area of land shown on one atlas sheet charted by the U.S. Geological Survey.
[Middle English, from Old French, from Late Latin quadrangulum, from Latin, neuter of quadrangulus, four-cornered : quadri-, quadri- + angulus, angle.]
quadrangular quad·ran'gu·lar (-răng'gyə-lər) adj.quadrangularly quad·ran'gu·lar·ly adv.
quadrangularness quad·ran'gu·lar·ness n.






